{1}
| {2}
| {3}
| {1,2}
{1,3} (George Sicherman) |
{1,4} |
{2,3} |
{2,4} |
{2,5} (George Sicherman) |
{3,4} (unique) |
{3,5} |
{3,6} |
{3,7} (unique) |
{3,8} (George Sicherman) |
{1,2,3} |
{1,2,4} |
{1,2,5} (George Sicherman) |
{1,3,4} |
{1,3,5} |
{1,3,6} (George Sicherman) |
{1,3,7} (George Sicherman) |
{1,3,8} (George Sicherman) |
{2,3,4} |
{2,3,5} (George Sicherman) |
{2,3,6} |
{2,3,7} |
{2,3,8} (George Sicherman) |
{2,4,5} |
{2,4,6} |
{3,4,5} (George Sicherman) |
{3,4,6} (George Sicherman) |
{3,4,7} (George Sicherman) |
{3,4,8} |
{3,5,6} (unique) |
|